#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2002-2023, OpenNebula Project, OpenNebula Systems                #
#                                                                            #
# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
# not use this file except in compliance with the License. You may obtain    #
# a copy of the License at                                                   #
#                                                                            #
# http://www.apache.org/licenses/LICENSE-2.0                                 #
#                                                                            #
# Unless required by applicable law or agreed to in writing, software        #
# distributed under the License is distributed on an "AS IS" BASIS,          #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
# See the License for the specific language governing permissions and        #
# limitations under the License.                                             #
#--------------------------------------------------------------------------- #

# MV <hostA:system_ds/disk.i|hostB:system_ds/disk.i> vmid dsid
#    <hostA:system_ds/|hostB:system_ds/>
#   - hostX is the target host to deploy the VM
#   - system_ds is the path for the system datastore in the host
#   - vmid is the id of the VM
#   - dsid is the target datastore (0 is the system datastore)

SRC=$1
DST=$2

if [ -z "${ONE_LOCATION}" ]; then
    TMCOMMON=/var/lib/one/remotes/tm/tm_common.sh
else
    TMCOMMON=$ONE_LOCATION/var/remotes/tm/tm_common.sh
fi

. $TMCOMMON

SRC=$(fix_dir_slashes $SRC)
DST=$(fix_dir_slashes $DST)

SRC_PATH=$(arg_path $SRC)
DST_PATH=$(arg_path $DST)

DST_HOST=$(arg_host $DST)

# Return if moving a disk, we will move them when moving the whole system_ds
# directory for the VM
if [ "$(is_disk $DST_PATH)" -eq 1 ]; then
    exit 0
fi

# Return if the target path is the same as the source path. No need to move
# anything. This is *not* a system ds migration.
if [ "$SRC_PATH" == "$DST_PATH" ]; then
    exit 0
fi

ssh_exec_and_log "$DST_HOST" "mv $SRC_PATH $DST_PATH" \
    "Error moving VM files to another System DS: $SRC_PATH to $DST_PATH in $DST_HOST"
